Automobile body rear force transmission structure and automobile

Abstract

The invention belongs to the technical field of automobile bodies, and relates to an automobile body rear force transmission structure and an automobile, and the automobile body rear force transmission structure comprises a rear suspension mounting piece, a rear wheel cover internal reinforcing plate, a rear wheel cover front joint, a rear wheel cover rear joint, a rear wheel cover external reinforcing plate, a rear wheel cover inner plate, a rear wheel cover outer plate and a rear longitudinal beam joint. According to the automobile rear force transmission structure, an H-shaped force transmission channel in the inner side covers the rear suspension stress area and dispersedly transmits force to the rear longitudinal beam joint, the rear floor cross beam, a spare tire pool cross beam andthe upper portion of the rear side wall, and the force transmission efficiency of the rear suspension area (especially a three-connecting-rod rear suspension area) is greatly improved; and the dynamicstiffness, the NVH performance and the fatigue durability of a rear shock absorber area are improved. The automobile body rear force transmission structure is suitable for an automobile model with asteel-aluminum hybrid automobile body matched with a three-connecting-rod rear suspension. Under the condition that a floor frame beam structure is not added, after the automobile body rear force transmission structure is adopted, the weight of the automobile body can be reduced by about 3 kg.

Description

technical field [0001] The invention belongs to the technical field of vehicle bodies, in particular to a force transmission structure at the rear of a vehicle body and an automobile. Background technique [0002] At present, there is basically no steel-aluminum hybrid body that matches the chassis structure of the three-link rear suspension, and most of them are based on the multi-link suspension structure. The body structure based on the multi-link suspension structure is expensive, and the improvement of NVH performance often requires the addition of a frame beam structure, which increases the weight of the vehicle, which is not conducive to lightweight. Contents of the invention [0003] The technical problem to be solved by the present invention is: for the existing car body structure based on the multi-link suspension structure, the improvement of NVH performance often needs to increase the frame beam structure and increase the weight of the whole vehicle, and to pro...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: for the existing car body structure based on the multi-link suspension structure, the improvement of NVH performance often needs to increase the frame beam structure and increase the weight of the whole vehicle, and to provide a force transmission structure at the rear of the car body and cars

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